I've been called a Cis male twice in person, once by a guy who identified as a lesbian woman, and once by a a girl who identified as a gay man. Both times they emphasized the **** out of "Cis" like it was some derogatory term, which is why I have a problem with the prefix, it's always used to try to put down or demonize people who identify their gender with their sex. I don't personally have a problem with trans people and the like, but everyone I've ever met has been the most thin skinned, easily offended annoying victim complex having piece of ****

Damn, son.
I defend the **** out of trans people, too. But I hope you punched them in the genitals. I think 'Cis' is a common insult amongst the nazi-style trans for 'normal' people. The nice trans don't seem to ever use it.